Rename DatabaseTaskSynchronizer to TaskSynchronizer and move it to platform/

Source/modules/webdatabase/DatabaseTask.h

 /*
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  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
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  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
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  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
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  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+
 #ifndef DatabaseTask_h
 #define DatabaseTask_h
 
 #include "heap/Handle.h"
 #include "modules/webdatabase/DatabaseBackend.h"
 #include "modules/webdatabase/DatabaseBasicTypes.h"
 #include "modules/webdatabase/DatabaseError.h"
 #include "modules/webdatabase/SQLTransactionBackend.h"
 #include "platform/Task.h"
+#include "platform/TaskSynchronizer.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Threading.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-// Can be used to wait until DatabaseTask is completed.
-// Has to be passed into DatabaseTask::create to be associated with the task.
-class DatabaseTaskSynchronizer {
-    WTF_MAKE_NONCOPYABLE(DatabaseTaskSynchronizer);
-public:
-    DatabaseTaskSynchronizer();
-
-    // Called from main thread to wait until task is completed.
-    void waitForTaskCompletion();
-
-    // Called by the task.
-    void taskCompleted();
-
-#ifndef NDEBUG
-    bool hasCheckedForTermination() const { return m_hasCheckedForTermination; }
-    void setHasCheckedForTermination() { m_hasCheckedForTermination = true; }
-#endif
-
-private:
-    bool m_taskCompleted;
-    Mutex m_synchronousMutex;
-    ThreadCondition m_synchronousCondition;
-#ifndef NDEBUG
-    bool m_hasCheckedForTermination;
-#endif
-};
-
 class DatabaseTask : public blink::WebThread::Task {
     WTF_MAKE_NONCOPYABLE(DatabaseTask); WTF_MAKE_FAST_ALLOCATED;
 public:
     virtual ~DatabaseTask();
 
     virtual void run() OVERRIDE FINAL;
 
     DatabaseBackend* database() const { return m_database.get(); }
 #ifndef NDEBUG
     bool hasSynchronizer() const { return m_synchronizer; }
     bool hasCheckedForTermination() const { return m_synchronizer->hasCheckedForTermination(); }
 #endif
 
 protected:
-    DatabaseTask(DatabaseBackend*, DatabaseTaskSynchronizer*);
+    DatabaseTask(DatabaseBackend*, TaskSynchronizer*);
 
 private:
     virtual void doPerformTask() = 0;
     virtual void taskCancelled() { }
 
     RefPtrWillBeCrossThreadPersistent<DatabaseBackend> m_database;
-    DatabaseTaskSynchronizer* m_synchronizer;
+    TaskSynchronizer* m_synchronizer;
 
 #if !LOG_DISABLED
     virtual const char* debugTaskName() const = 0;
     bool m_complete;
 #endif
 };
 
 class DatabaseBackend::DatabaseOpenTask FINAL : public DatabaseTask {
 public:
-    static PassOwnPtr<DatabaseOpenTask> create(DatabaseBackend* db, bool setVersionInNewDatabase, DatabaseTaskSynchronizer* synchronizer, DatabaseError& error, String& errorMessage, bool& success)
+    static PassOwnPtr<DatabaseOpenTask> create(DatabaseBackend* db, bool setVersionInNewDatabase, TaskSynchronizer* synchronizer, DatabaseError& error, String& errorMessage, bool& success)
     {
         return adoptPtr(new DatabaseOpenTask(db, setVersionInNewDatabase, synchronizer, error, errorMessage, success));
     }
 
 private:
-    DatabaseOpenTask(DatabaseBackend*, bool setVersionInNewDatabase, DatabaseTaskSynchronizer*, DatabaseError&, String& errorMessage, bool& success);
+    DatabaseOpenTask(DatabaseBackend*, bool setVersionInNewDatabase, TaskSynchronizer*, DatabaseError&, String& errorMessage, bool& success);
 
     virtual void doPerformTask() OVERRIDE;
 #if !LOG_DISABLED
     virtual const char* debugTaskName() const OVERRIDE;
 #endif
 
     bool m_setVersionInNewDatabase;
     DatabaseError& m_error;
     String& m_errorMessage;
     bool& m_success;
 };
 
 class DatabaseBackend::DatabaseCloseTask FINAL : public DatabaseTask {
 public:
-    static PassOwnPtr<DatabaseCloseTask> create(DatabaseBackend* db, DatabaseTaskSynchronizer* synchronizer)
+    static PassOwnPtr<DatabaseCloseTask> create(DatabaseBackend* db, TaskSynchronizer* synchronizer)
     {
         return adoptPtr(new DatabaseCloseTask(db, synchronizer));
     }
 
 private:
-    DatabaseCloseTask(DatabaseBackend*, DatabaseTaskSynchronizer*);
+    DatabaseCloseTask(DatabaseBackend*, TaskSynchronizer*);
 
     virtual void doPerformTask() OVERRIDE;
 #if !LOG_DISABLED
     virtual const char* debugTaskName() const OVERRIDE;
 #endif
 };
 
 class DatabaseBackend::DatabaseTransactionTask FINAL : public DatabaseTask {
 public:
     virtual ~DatabaseTransactionTask();
@@ skipping 13 matching lines @@
     virtual void taskCancelled() OVERRIDE;
 #if !LOG_DISABLED
     virtual const char* debugTaskName() const OVERRIDE;
 #endif
 
     RefPtrWillBeCrossThreadPersistent<SQLTransactionBackend> m_transaction;
 };
 
 class DatabaseBackend::DatabaseTableNamesTask FINAL : public DatabaseTask {
 public:
-    static PassOwnPtr<DatabaseTableNamesTask> create(DatabaseBackend* db, DatabaseTaskSynchronizer* synchronizer, Vector<String>& names)
+    static PassOwnPtr<DatabaseTableNamesTask> create(DatabaseBackend* db, TaskSynchronizer* synchronizer, Vector<String>& names)
     {
         return adoptPtr(new DatabaseTableNamesTask(db, synchronizer, names));
     }
 
 private:
-    DatabaseTableNamesTask(DatabaseBackend*, DatabaseTaskSynchronizer*, Vector<String>& names);
+    DatabaseTableNamesTask(DatabaseBackend*, TaskSynchronizer*, Vector<String>& names);
 
     virtual void doPerformTask() OVERRIDE;
 #if !LOG_DISABLED
     virtual const char* debugTaskName() const OVERRIDE;
 #endif
 
     Vector<String>& m_tableNames;
 };
 
 } // namespace WebCore
 
 #endif // DatabaseTask_h